钼酸锌-碳复合材料在染料敏化太阳能电池对电极中的应用

发布时间：2018-06-05 01:42

本文选题：染料敏化太阳能电池 + 水热合成　；参考：《无机材料学报》2014年11期

【摘要】：采用水热合成法制备出片状结构钼酸锌,并以其为原料,添加石墨(G)或导电碳(Cc),利用喷涂法分别制备出ZnMoO4、ZnMoO4-G和ZnMoO4-Cc对电极催化材料,应用于染料敏化太阳能电池(DSCs)中。实验结果表明:以ZnMoO4为对电极材料的DSC光电转换效率为4.19%,在分别添加石墨及导电碳制备成复合对电极材料后,其相应的光电转换效率分别提高到6.56%及7.36%。其中,ZnMoO4-Cc对电极与相同条件下铂对电极的光电转换效率(7.81%)相当。电化学阻抗(EIS),循环伏安法(CV)及Tafel极化曲线测试结果表明,ZnMoO4、ZnMoO4-G和ZnMoO4-Cc三种材料均具有一定的导电性和电催化性能。
[Abstract]:Zinc molybdate with flake structure was prepared by hydrothermal synthesis method, which was used as raw material to add graphite (G) or conductive carbon (CCC). ZnMoO4ZnMoO4-G and ZnMoO4-Cc antielectrode catalytic materials were prepared by spraying method, which were used in dyestuff sensitized solar cell (DSCs). The experimental results show that the optoelectronic conversion efficiency of DSC with ZnMoO4 as the opposite electrode is 4.19. After adding graphite and conducting carbon to the composite electrode material, the corresponding photoelectric conversion efficiency is increased to 6.56% and 7.36% respectively. The photovoltaic conversion efficiency of ZnMoO4-Cc pair electrode is equal to that of platinum pair electrode under the same conditions. The electrochemical impedance, cyclic voltammetry (CV) and Tafel polarization curves showed that the three kinds of materials, ZnMoO4ZnMoO4-G and ZnMoO4-Cc, had certain electrical conductivity and electrocatalytic properties.
【作者单位】：大连海事大学环境科学与工程学院;大连海事大学物理系;大连理工大学精细化工国家重点实验室;
【基金】：国家自然科学基金(11204022) 中央高校基本科研业务费专项基金(2012QN066,3132014099)~~
【分类号】：TM914.4;TB332

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